AMD Threadripper 3970X - PBO on Vs. off

#Overclocking #3970X #Threadripper
Using AMD Ryzen Master to turn Precision Boost Overdrive on and off, I am comparing a few benchmark results and system power usages of the AMD Ryzen Threadripper 3970X. The results were interesting! The 3970X is being cooled by my own custom water loop mainly consisting of parts from EKWB all housed inside the Phanteks Enthoo Luxe 2 (719) case with 3 radiators.

Equipment used for filming:

PC equipment used for video editing:

Purchases made through some store links may provide some compensation to DaPoets

[DaPoets]

Let me know what benchmarks you would like to see for the AMD Threadripper 3970X!

[pstls]

with pbo off socket power draw should not be 400 watts. pbo may have been set to auto instead of off. either it is that, or your motherboard has very overkill power limits by default. this isn't necessarily a bad thing, but it is misleading power delivery on gigabyte's part. for instance, on my 3900x my cpu used to pull 185 watts on early bios, and after the latest bios they corrected power delivery and it pulls the listed ~145 ish watts as described (socket power will be a bit higher than actual cpu power draw). For others with different boards pbo will yield better results. :) nice video man, love seeing so many cores and threads work!

[szurpx]

Nice video, interested to see how the system performs with some tweaking. I know with Zen 2, you can't really overclock it much, especially since it's so sensitive to voltages (for all core work / stress testing, it's risky going above 1.3v flat). But I noticed that on reddit, many people actually recommended a voltage offset of -0.01v or so, they said it actually resulted in lower temps and power usage, as well as higher boost clocks! But I would be careful with undervolting, clock stretching is a real phenomenon, so you should always run benchmarks to see if your score increases or at least stays the relative same after undervolting.

I'm curious to see if Threadripper benefits as well from this, it'd be cool to see this tested. Also, I was wondering if you planned on doing any ram overclocking, as that is another avenue for increasing performance for Zen 2.

[kusumayogi]

You should give use diagram chart for result

[jmulatojm]

Great video, waiting for the second video. It will be nice to see step by step when you change the BIOS!!!

[EpicInternet]

I thought the sad face was a subtitle :(

[rufatshahbazov]

What is the best cooling system for 3970x? I have that cpu and temprature is abvoe 95. I cant go anything to optimize it

[SteveP]

@ Dapoets Do you by any chance know of any AIO that cover the entire chip avialable or coming out soon? I am googling but can't seem to come up with anything ... I have this chip and have a corsair AIO on it and during heavy rendering it gets in the low/mid 80's and im getting scared.. please, any info let me know what you think .. Also -- you think its safe that its hitting in the mid 80's for this chip .. Im not ready to do a custom loop yet .. thank you in advance :)

[TheGodFactory]

have you gotten dpc watchdog violation under sustained load?

[GiovanniDiGrezia]

can you please post cpu temps under occt power test? thank you

[abstractapproach]

What gpu are you running with that beast?

[ixxeon]

PBO was on all the time. At stock the CPU should never go above 280Watts, but you had 400Watt+ even on the stock run. Also under PBO you should easily see a peek over 500Watts, so your motherboard is not setting very good PBO limits.

[kuzeyrfatkzgnkaya]

can you do cppc and cppc preferred cores on vs off?

[ixxeon]

3990X does over 820Watt under PBO with proper cooling :)

[Larwood.]

PBO should make more of a difference with lightly threaded workloads, r20 single thread would have been interesting.